A group of companies behind a Miami hotel project urger a Florida federal judge Thursday to shield them from allegations that they helped scam Chinese investors and dashed their chances of winning a green card through the EB-5 visa program. The companies, referred to as the Greystone entities after the hotel project, claimed the investor's lawsuit "lumped together" the investors and left out any individualized details, slamming the 129-page complaint as containing "repetitive and conclusory allegations.